William s



W. S. OWEN. Sash Fastener (No Model.)

lNo. 231,352. Patented Aug. 17,1880.

s. m E P UNITED vSTATES PATENT OFFICE.

VILLIAIVI S. OWEN, OF WASHINGTON, DISTRICT OF COLUMBIA.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 231,352, dated August 1'7, 1880.

Application llcd June 2, 1880. (Nomodcl.)

To all whom t may concern:

Beit known that I, WILLiAM SMITH OWEN, a citizen ofthe United States, residing at Washington, in the District of Columbia, have invented new and useful Improvements in Sash- Fasteners, of which the following is a specifr cation.

My object is to obtain by the simplest construction a cheap and effective fastening device, applicable for window-sash and doors.

The face-plate is formed with a rear projecting shoulder-seat for a cam-shaped tumbler` which is held upon said seat byside ears and the plate-spring which carries the fasteningbolt, whereby I am enabled to use a tumbler merely placed upon a shoulder| on the back of the faceplate, and held thereon in position to maintain the angular opening in said tumbler coincident with circular openings in the side ears to receivethe operating stemkey, while at the same time this shoulder forms a stop for the tumbler to hold thefastening-bolt withdrawn. By this construction the tumbler only moves through a quarter-arc, and requires no centering-hubs or bearings, and thus saves the expense and labor of such fitting. The casing having been-suitably excavated, the faceplate is fitted in place, and before being secured the hole for the stem-key is bored so as to match with theeye of the tumbler.

The keystem fits and turns in the ears of the face-plate; but the tumbler, by the means described, is held in position to receive the angular stem, and the shoulder forms a stop to hold the spring-bolt retracted, thereby giving the advantage of using the device as a safety-fastenin g for doors.

Referring to the accompanying drawings, Figure l represents the device in perspective, the casing in which it is mortised being shown in dotted lines; Fig. 2, a vertical section, showing the spring-bolt held retracted; Fig. 3, a

similarsection showin gthe spring-bolt locked;

Fig. 4, the camtumbler and the angular stemkey; and Fig. 5, a detail, showing the tumbler supported on the shoulder. Fig. 6 shows a detail of the key-stem, its handle, and the face-plate.

The face-plate A is cast with side ears, e o, and between them a rear projecting shoulder, b, standing at right angles to the face-plate,

and with the ears formiiig a recess, within which the cam-tumbler ,C is placed. The ears are provided with circular openings j', andthe tumbler has an angular opening, h, and the relation of the shoulder to these openings is such as to support the tumbler, so that they will be coincident, to allow the stenrkey to be passed through them after the face-plate has been mortised into the casing. In this connection the spring B, which carries the bolt c, serves to hold the tumbler upon the shoulder .und against the back of the face-plate. By this means the tumbler is held in proper position to receive the key-stem without hub-bearings in the ears; but the shoulder servos also the important function of a stop to limit the turning of the tumbler to retract the bolt. The tumbler being of cam form will, when turned a quartercircle against the spring B, rest against the shoulder, and thus hold the bolt retracted, as shown in Fig. 2. It is this feature which renders the device applicable to a door as asafetyfastening.

The spring is secured to the inner vside of the faceplate, and carries the bolt c atitsfree end, so as to operate through an opening in the face-plate and to engage with a hole, d, inV the' window-casing or door-j amb.

The stem-key D has an angular termination, g, by which it is secured to and turns the tumbler, while it turns freely in the ears, anditis by this construction that the device is adapted for use with a right or left opening door.

A plate, 7c, in connection with ashoulder, n, on the stem-key serves to secure the latter in place; or it may be removable, if desired.

The tumbler is turned by theknob lto force back the spring and retract the bolt; but the tumbler striking the shoulder is stopped in a position to be held by the spring, and so hold the bolt retracted until it is desired to again throw the bolt.

In fitting the face-plate into the mortise the shoulder b must be upward and the cam-tumbler placed thereon. so that the spring will bear upon and hold it against the face-plate with its longest side up, as shown in Fig. 3, so that the tumbler is merely placed upon the shoulder, and by the spring and the ears it is held in position to receive the stem-key, inserted through an opening in the casing.

IOO

As a sash-look, it is understood that the sash is provided with holes arranged to look the sash and to hold it open when the same is not provided with Weights.

I am aware that prior to my invention sashloelis have been made with a plate-spring` earrying a locking-pin and operated by an arm ixed upon a rod so as to press back the spring and retract the bolt; that pivoted claw-arms have been operated by a tumbler having an angular eye to receive an angular stem-key to open the elawarms to release the sash, and that a reversible lookin g-lever has been used Within a ease in connection with an angular stem-key, and I do not elaim, broadly, the combination of a spring-bolt with an operating-lever, nor an angular-shanked stem-key adapted to operate an angular-eyed tumbler; but the specific thing` which I have shown and WILLIAM S. OWEN. Witnesses A. E. H. JOHNSON, J W. HAMILTON J oHNsoN. 

